Machine for treating hides or skins.



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. WITNESSES: i

A TTORNEY.

No. 722,888. PATBNTBD MAR. 17,190.8'.

P. J. PERKINS. MACHINE R08 TRBATING HIDBS 0R SKINS.

APPLIUATION FILED NOV. 2l, 1902. v

N0 MODEL. 3 SHEETS-SHEET 3.

f I "ILMW UNITED STATES ENT Fries.

FRANKLIN J. PERKINS, OF WOBURN, MASSACHUSETTS, ASSIGNOR TO VAUGHN MACHINE COMPANY, OF BOSTON, MASSACHUSETTS, A COR- PORATION OF WEST VIRGINIA.

MACHINE FOR TREATING HIDES OR SKINS.

SPECIFICATION forming part of Letters Patent No. 722,888, dated March 17, 19037l Application tiled November 2l, 1902. Serial No. 132,242. (No model.)

T0 LZZ whom it may con/cern:

Be it known that I, FRANKLIN J. PERKINS,

a citizen of the United States, residing in Woburn, in the county of Middlesex and State of Massachusetts, haveinvented anlmprovement in Machines for Treating Hides or Skins, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention relates to a machine for treating hides, skins, and leather, and is an improvement upon the machine shown and described in United States Patent No. 701,080, granted to me May 27, 1902. In the machine shown in the patent referred to the portion of the hide or skin lying over the edge of the table or work-support is acted upon by rotating bladed cylinders or rolls which normally project into the path of movement of the table out of line With each other and are moved laterally with relation to said table or support. In the machine referred to 'the skin is first acted upon by one cylinder or roll Which moves laterally in one direction, and is then acted upon by the second roll, which moves laterally in the opposite direction. When the first roll or cylinder is actingupon the hide or skin, the shorter portions ofthe hide or skin are liable to be drawn or movedY out of operative position with relation to the second of said rolls.

This present invention has for its object to provide means whereby the hide or skin is held from being pulled or moved over/the edge of the table by the laterally -moving rolls.

"i The invention is especially adapted for preventing lateral movement of the neck portion of hides or large skins, and is also equally well adapted for use with shorter or smaller skins-such, for instance, as goatskins. For this purpose I provide the machine With means which engages the portion of the skin lying on the opposite side of the table or support to the roll or Working cylinder and located in the vicinity of or close proximity to the working cylinder when the latter is in its normal position, so that when the said Working cylinder engages the portion of the skin lying on the edge of the table the portion of the skin lying on the op' posite side of the table will be engaged in close proximity to the edge of the table by said means, and VWill thus be held from being drawn laterally over the edge of the table by the laterally-moving operating roll or cylinder.

The particular features of this invention will be pointed out in the claims at the end of this specification.

Figure l is a front elevation of a machine embodying this invention; Fig. 2, a vertical section on the line 2 2, Fig. 1, looking toward the right; and Figs. 3 and 4, details to be referred to.

The main portion of the machine herein shown is substantially the same as that shown and described in the patent above referred to.

a, brepresent the side frames or uprights, between which are arranged the tables or 4Work-supports c, pivoted to the endless carriers or link chains d, which are passed about the sprocket-Wheels cfg. The main operating-rol1s h, provided with the helically-arranged blades or Working edges 1l, are supported in the hangers 60, mounted to swing on the shafts 0r rods 61, disposed on .the opposite sides of the vertical path of movement of the table. The rolls h are held in yieldingengagement with the hide or skin as the table passes between them by the spiral springsj, encircling the rods 62, the

tension or force of which is regulated by or arms 8 of hubs or sleeves 9, loose on a shaft 95 cranks or arms 8, the intermediate pinion 13 being rotated by a gear l5, fastened on the shaft 10 by the pin 16, the said gearing being inclosed by a casing 20. The shaft 10 is driven from a main roll h by the link chain 2l, and the rolls h are driven from a main shaft 22 and counter-shaft 23 by link chains 24 25, the counter-shaft 23 being driven from the shaft 22 by suitable gears 26 27. The endless carrier d is driven from the shaft'23 by the link chain 30, passed about the sprocket-wheel 3l on the shaft 32, provided at its opposite ends with pinions 33, which mesh with gears 34 on the shafts of the sprocket-wheels e.

The auxiliary rolls are held in engagement with the hide or skin on the table or support with a yielding and adjustable pressure, and for this purpose each hub or sleeve 9 is provided with a crank'or arm 35, to which is pivotally connected a rod 36, extended through a movable guide 37, pivotally securedin a side frame of the machine, the said rod being encircled by a spiral spring 38, which is seated at one end in a cup-shaped washer 39 and at its other end bears `against a washer 40, adjustably secured on the rod 36 by the setscrew 4l. The spring 38 is compressed as the roll-carrying crank or arm S is moved by the table or support from its normal horizontal position to a substantially vertical position, and the return movement of the roll is retarded by a dash-pot or cylinder 42, having the piston 43, provided with the pistou-rod 44, which is pivoted at one end to the piston 43 and at its other end to a crank or arm 45, extended from the hub 9, substantially diametrically opposite to the crank 35, the cylinder 42 being provided with the petcock 47.

In operation with the machine as thus far described a hide or skin is placed over the table or support at the front of the machine, with the backbone of the hide or skin lying over the upper end or edge ofthe table, which latter is carried backward toward the rear of the machine and then upward, as clearly represented in Fig. 2. The hide or skin is first presented to the action of the main operating rolls or cylinders h, which put out or otherwise treat the sides of the hide or skin lying against the opposite faces of the table. The table on its upward travel engages the lowermost of the auxiliary rolls m, which istu rned upward and backward by the table, and being at the same time positively rotated the said roll puts out, unhairs, or otherwise treats that portion of the hide or skin lying on the end or edge of the table and which is not acted upon by the main operating-rolls. As soon as the upper edge of the table has passed beyond the lowermost auxiliary roll it engages the uppermost auxiliary roll m and forces it upward and backward in an opposite direction, which latter roll in turn acts to put out, unhair, or otherwise treat the portion of the skin lying over the edge of the table.

In the operation of the machine as thus described the shorter portions of the hides oii the larger skins lying over the edge of the table-such, for instance, as the neck portionare liable to be drawn over the edge of the table by the lateral movement of the auxiliary' rolls, as are also the shorter skins, thereby leaving a portion of the hide or skin untreated. To avoid this is the object of this present invention, and for this purpose I have provided means for engaging the portion of the skin lying on the side of the table opposite to the auxiliary roll, so that when the auxiliary roll is moved backward by the table on its upward movement the portion of the hide or skin lying over the edge of the table is held in place and prevented from being drawn over the said edge by the laterallymoving auxiliary roll.

In the present instance the lower auxiliary roll m has coperating with it a clampingbar orv presser 70, of brass or other suitable material, which is secured to a tie-bar 71, fastened to hangers or arms 72, loosely mounted to turn on a stationary shaft or rod '73, (see Figs. 3 and 4,) supported in upright arms 74, fastened onto the shaft or rod 61, upon which the hangers 60 for the lower roll h are pivoted. The rod 73 has fast on it curved or bent cranks or arms 77, through which are extended rods 78, fastened to the tie-bar 7l and encircled by a spring 79, which holds the clamping-bar or presser in engagement with the hide or skin on the table with a yielding pressure. The upper auxiliary roll m has cooperating with it a like clamping-bar or presser 80, secured to a tiebar Sl, fastened to hangers 82, loose on a shaft or rod 83, supported by the uprights or side frames a b, the said rod having fast on it cranks or arms 84,through which are extended rods 85, which are fastened to the tie-bar 81 and are encircled by spiral springs 86, by which the clamping-bar or presser 8O may be engaged with the hide or'skin on the table witha yielding pressure.

The presser-bars 70 8O are located substantially opposite the auxiliary rolls fm when the latter are in their normal or horizontal position, so that the presser-bars may engage the hide or skin near the upper end or edge of the table or support at or about the time the auxiliary rolls are engaged by the portion of the hide or skin lying over the end or edge of the table, and thus prevent the short skins or the neck or other short portions of the large skins or hides being drawn over the edge or end of the table by the auxiliaryrolls.

ByV reference to Fig. 2 it will be seen that the clampingbar or presser 70 holds the skin from being drawn over the end or edge of the table or work-support in one direction by the lower auxiliary roll m, and the bar or presser 8O prevents the skin from being drawn over the edge of the table in the opposite direction by the upper auxiliary roll. In this manner the hides or skins are most effectively presented to the working cylinders or rolls,

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teasers and the neck and shorter portions of the larger skins and the shorter skins are Worked out in a most eliicient manner.

I claiml. In a machine of the character described, in combination, a substantially dat support over the end of which a hide or skin may be folded to lie against the face of the support, an operating-roll normally in the path of movement of the said table or support and adapted to act upon that portion of the hide or skin which lies on the end of the support without shifting the hide or skin, instrumentalities for making the said support and the said roll relatively movable, means for rotating said roll while the latter is in engagement with the hide or skin, and means for engaging said hide or skin in proximity to the end or edge of the table,to prevent the hide or skin being drawn over the end of the table by said operating-roll, substantially as described.

2. In a machine of the character described, in combination, a movable work-support over which a hide or skin is adapted to be folded,

main operating cylinders or rolls to act on the sides of the hide or skin, means for rotating said cylinders or rolls, auxiliary cylinders or rolls for operating on the portion of the hide or skin lying on the edge or end of the table, supports for said auxiliary cylinders or rolls movable laterally with relation tothe path of movement of said Work-support, mechanism for rotating said auxiliary rolls movable with the supports therefor, and clamping-bars for engaging said hide or skin in proximity to the end or edge of the table to restrain said hide or skin from movement across the edge or end of the table under the inuence of the said auxiliary rolls,substantially as described.

3. In a machine of the character described, in combination, a traveling work-support, rotatable rolls normally intersecting the path of movement of said Work-support in different planes at an angle to the path of movement of said support and provided With helically disposed working edges, said rolls being movable in opposite directions out of the path of movement of said support, means for rotating said rolls during the movement of the same with relation to said support, and means located on opposite sides of the path of movement of the Work-support for engaging the hide or skin in proximity to the edge or end of said support to restrain the skin from movement across the edge or end of the table under the infuence of said rolls, substantially as described.

4. In a machine of the character described,

in combination, a Work-support having approximately flat faces and an end, whereby a hide or skin may be doubled over the said end to lie against said faces, an operating-roll provided with helically-arranged blades or Working edges located With relation to said Work-support to engage and treat that portion of the hide or skin Which is on the end of the support, means for moving one of said parts bodily with relation to the other, means for rotating said roll, and means for engaging the hide or skin in proximity to the end of the support to restrain the hide or skin from movement across the end of the support under the influence of the said roll, substantially as described.

5. In a machine of the character described, in combination, a Work-support having approximately fiat faces and an end, whereby a hide or skin may be doubled over the said end to lie against said faces, an operating-roll providedlwith helically-arranged blades or Working edges located with relation to said work-support to engage and treat that portion of the hide or skin which is on the end of lthe support, means for moving one of said parts bodily With relation to the other, means for rotating said roll, a presser for engaging the hide or skin in proximity to the end of the support, and means for holding said presser in engagement With the hide or skin with a yielding pressure, substantially as described.

6. `In a machine of the character described, in combination, a Work-support having approximately flat faces and an end, whereby a hide or skin may be doubled over the said end to lie against said faces, an operating-roll provided With helicallyarranged blades or Working edges located With relation to said Work-support to engage and treat that portion of the hide or skin which is on the end of the support, means for moving one of said parts bodily with relation to the other, means for'rotating said roll, a presser-bar for engaging the hide or skin in proximity to the end of the support, swinging hangers for said presser-bar, stationary cranks or arms cooperating with said hangers, and yielding means interposed between said hangers and said cranks or arms, substantially as described.

In .testimony Whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FRANKLIN J. PERKINS.

Witnesses:

HORACE P. FARNHAM, AUGUSTUS TUCKER.

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